IPP> Re: Root OID for IPP Printer Schema

IPP> Re: Root OID for IPP Printer Schema

IPP> Re: Root OID for IPP Printer Schema

McDonald, Ira imcdonald at sharplabs.com
Fri Apr 21 17:57:30 EDT 2000

Hi James,

I don't see any base arc in your SLP to LDAP translation
spec for all SLP templates to allocate below.  But we
have some complications anyway.

We referred to your translation spec a good deal, BUT,
during development of the LDAP schema, folks from IBM,
Sharp, and Xerox indicated that they wanted an LDAP
printer schema that was independent of SLP (and shorn
of the SLP base attributes).

So our actual draft defines 6 object classes:

slpServicePrinter - aux class for SLP registered printers
servicePrinter - abstract class - to be renamed 'printerAbstract'
printerService - base structural class for printers
printerServiceAuxClass - aux class for adding printer to
	some other object class
printerIPP - aux class for IPP printers
printerLPR - aux class for LPR printers

(the first one defines the SLP standard attributes for
attachment to either 'printerService' structural or
'printerServiceAuxClass' aux objects)
(the last two are attached to one of the preceding two)

So we need OIDs for six classes and a number of attributes.

There are a lot of deployed LDAP-capable directories that
have proprietary printer objects or ones from other standards
(like DMTF's CIM printer).  It proves useful to use the
'printerServiceAuxClass' to augment these existing printer
objects with interoperable standardized attributes.

Hope this helps set some context.

- Ira McDonald, co-author LDAP printer schema
  High North Inc

-----Original Message-----
From: James Kempf [mailto:James.Kempf at Eng.Sun.COM]
Sent: Friday, April 21, 2000 2:08 PM
To: cmanros at cp10.es.xerox.com; harryl at us.ibm.com;
alexis.bor at directoryworks.com; bgreenblatt at directory-applications.com
Cc: cmanros at cp10.es.xerox.com; ietf-ldapext at netscape.com; ipp at pwg.org;
mark.wahl at innosoft.com
Subject: RE: IPP> Re: Root OID for IPP Printer Schema

>Well, if Sun doesn't want you to use their arc for this, that is a
>different problem altogether.  If it will help, I'm certainly willing to
>donate an arc off of my branch of the OID tree:

No, it's not a matter of "Sun not wanting to", it's just that it seems there
is some amount of unhappiness about using a Sun-specific arc. Since
I put the OID in the draft, we're perfectly happy to donate the OID.

>I've already used a couple of branches underneath this, but I'm willing to
>allocate: for your use.

It sounds to me like most people would prefer a neutral arc, not
allocated to any company, but I can use this OID if there is no

What do people think? Should I use Bruce's or go to IANA for one?


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